16.2.2. Aggregates

Try these first

1. 1.

   What are the two main types of aggregates in concrete?

   Hint

   Think about size differences.

2. 2.

   What is the purpose of coarse aggregates?

   Hint

   Focus on the strength aspect.

3. 3.

   What is the maximum size for coarse aggregates in cement concrete pavements?

   • 10 mm
   • 20 mm
   • 30 mm

   Hint

   Consider the size limitations mentioned in your materials.

4. 4.

   True or False: Fine aggregates can include crushed stone sand.

   • True
   • False

   Hint

   Remember the definitions of fine aggregates.

5. 5.

   Evaluate a specific aggregate mix consisting of angular and rounded aggregates. Discuss its performance in concrete strength and workability.

   Hint

   Consider the interlocking nature of different shapes.

6. 6.

   Create a mix design for a concrete pavement project that includes both coarse and fine aggregates, ensuring compliance with IS: 383. Justify your chosen proportions.

   Hint

   Think about achieving structural goals while following standards.